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Mary Williams — 1920 US Census Record
Linked across censuses1920 United States Federal Census · New Castle, Delaware
Our Model Tree links this Mary Williams across the 1900, 1910 and 1920 US Censuses in New Castle, Delaware (XGBoost, ~Confirmed) — first a spouse (b.~1864), then head of a 13-person household.
Age 56
b. ~1864
Female
Spouse
Born: Maryland
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | New Castle, Delaware |
| Surname | Williams |
| Given Name | Mary R. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Additional Details | |
| Occupation | Secretary |
| Industry | Insurance Co |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Secretary |
| Township / Ward | Wilmington City |
| Est. Birth Year | ~1864 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
13 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Thomas Williams | Head | — | 51 | ~1869 |
| Ethel Perry | Other | — | 19 | ~1901 |
| Edwin Manson | Other | — | 23 | ~1897 |
| Hilda Manson | Other | — | 18 | ~1902 |
| John Solloway | Other | — | 56 | ~1864 |
| George Hurst | Other | — | 12 | ~1908 |
| George Perry | Other | — | ~1920 | |
| Helen Lynch | Other | — | 25 | ~1895 |
| Joseph Lynch | Other | — | 27 | ~1893 |
| Thomas Murphy | Other | — | 25 | ~1895 |
| George Perry | Other | — | 22 | ~1898 |
| George Williams | Son | — | 28 | ~1892 |
| Mary Williams | Spouse | — | 56 | ~1864 |
Census Appearances
1900
New Castle, …
Spouse, age 37
New Castle, Delaware · implied b. ~1863 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Mary R |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Maryland |
| Birth Month | Aug |
| Birth Year | 1863 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read | Yes |
| Can Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1910
New Castle, …
Spouse, age 45
New Castle, Delaware · implied b. ~1865 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Mary R |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Maryland |
| Years Married | 26 |
| Children Born | 5 |
| Children Living | 4 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1920
New Castle, …
Spouse, age 56
New Castle, Delaware · implied b. ~1864 — 13 household members
| Surname | Williams |
| Given Name | Mary R. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Secretary |
| Industry | Insurance Co |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Mary Williams across 3 US Census years (1900, 1910 and 1920) in New Castle, Delaware, using XGBoost record linkage.
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This person
Anchor record
Mary Williams
Spouse · 1920 · age 56 · b. ~1864 · Delaware
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — New Castle, Delaware
Open full size
1920 US Federal Census — New Castle, Delaware
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu201unit:0840)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Thomas H. Williams | 51 | Head | — | Delaware |
| 2 | Mary R. Williams THIS PERSON | 56 | Wife | Secretary | Maryland |
| 3 | George H. Williams | 28 | Son | — | Delaware |
| 4 | George H. Hurst | 12 | Grandson | Machinist | Delaware |
| 5 | John A. Solloway | 56 | Lodger | — | Maryland |
| 6 | Thomas A. Murphy | 25 | Lodger | Shipping Clerk | New Jersey |
| 7 | Edwin Manson | 23 | Lodger | Clerk | Sweden |
| 8 | Hilda A. Manson | 18 | Lodger | Housekeeper | Florida |
| 9 | George T. Perry | 22 | Lodger | Saleslady | Delaware |
| 10 | Ethel May Perry | 19 | Lodger | Bleach Maker | Delaware |
| 11 | George T. Perry | 0 | Lodger | — | Delaware |
| 12 | Joseph J. Lynch | 27 | Lodger | — | Delaware |
| 13 | Helen Lynch | 25 | Lodger | Electrician | Delaware |
| 14 | Francis Doughty | 78 | Head | — | Ireland |
| 15 | Andrew Mcdonald | 37 | Nephew | — | England |
| 16 | William Mendenhall | 72 | Head | Surveyor | Pennsylvania |
| 17 | Lida Mendenhall | 60 | Wife | Salesman | Pennsylvania |
| 18 | Edward Crawford | 40 | Lodger | — | Pennsylvania |
| 19 | James T. Butler | 60 | Head | Welder | Maryland |
| 20 | Hettie Butler | 58 | Wife | Counter | Maryland |
| 21 | Raymond Butler | 25 | Son | — | Delaware |
| 22 | Mary Butler | 24 | Daughter-in-law | Machinist | Delaware |
| 23 | Hettie Butler | 24 | Daughter | — | Delaware |
| 24 | Clifford Butler | 5 | Grandson | — | Delaware |
| 25 | Earl R. Butler | 1 | Grandson | — | Delaware |
| 26 | Martha Jane Bradford | 74 | Lodger | — | Pennsylvania |
| 27 | Charles J. Curley | 40 | Head | Housekeeper | Delaware |
| 28 | Edward J. Curley | 45 | Brother | Attorney | Delaware |
| 29 | Agnes Curley | 47 | Sister | Social Worker | Delaware |
| 30 | Mary Curley | 50 | Sister | — | Delaware |
| 31 | Ezig Greenblatt | 38 | Head | Painter | Russia |
| 32 | Rose Greenblatt | 37 | Wife | — | Russia |
| 33 | Ida Greenblatt | 15 | Daughter | — | Delaware |
| 34 | Sarah Greenblatt | 13 | Son | — | Delaware |
| 35 | Hannah Greenblatt | 5 | Son | — | Delaware |
| 36 | Ellen S. Jefferis | 84 | Head | — | New York |
| 37 | Aquila C. Jefferis | 45 | Son | — | Pennsylvania |
| 38 | Edmona Jefferis | 42 | Daughter | Cashier | Pennsylvania |
| 39 | Walter Scott | 52 | Head | — | Delaware |
| 40 | Elizabeth Scott | 48 | Wife | Machinist | Delaware |
| 41 | George C. Scott | 26 | Son | — | Delaware |
| 42 | Charles Scott | 13 | Son | Laborer | Delaware |
| 43 | Sutley Scott | 8 | Son | — | Delaware |
| 44 | James S. O'Neill | 46 | Lodger | — | Ireland |
| 45 | John J. Murdock | 45 | Lodger | Clerk | Pennsylvania |
| 46 | Charles L. Harris | 34 | Lodger | Laborer | Pennsylvania |
| 47 | Charles D. Carey | 34 | Lodger | Pipefitter | Pennsylvania |
| 48 | Joseph M. Zak | 26 | Lodger | Boiler Maker | Delaware |
| 49 | Edward Jr. Watt | 18 | Lodger | Shipfitter | Delaware |
| 50 | Mable Moscow | 30 | Head | Laborer | Pennsylvania |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)